336. 'Return back' used instead of 'return'
(X) She has returned back to school.
(O) She has returned to school
Don't use the word "back" with "return", because "return" means "to come back".
337. 'Begin from' used instead of 'begin'
(X) Exams begin from Thursday.
(O) Exams begin on Thursday.
A thing can begin only at a point of time. The word can't be used
to apply to the whole time during which a thing is being done.
338. 'Consider as' used instead of 'consider'
(X) Robert considers me as his best friend.
(O) Robert considers me his best friend.
Don't use "as" after the word "consider".
We say -> He regards me as his best friend. "or" Robert considers me (to be) his best friend.